A Train Floating On Air

A train that floats on air? It's not magic — it's magnets (磁). And it's close to reality.

         In Virginia USA the fall of 2002, a train with no wheels traveled on air and carried college students across their campus. In Japan, a whisper-quiet railway engine hovered and raced at 350 miles per hour using magnets and electricity as the power. And in China, a magnet train line linked Shanghai with nearby Pudong Airport.

These trains use magnetic levitation (悬浮) technology, “maglev” for short. They use the same rules as the magnets you pick up at home or school: opposite poles of magnets attract each other, and like poles repel each other.

How does it work?

Powerful magnets on the bottom of the train repel magnets on the track, which is actually just a magnet-filled guiding way. With a magnetic field of sufficient force, the train will go hovering on air, which seemed impossible to us in the past.

When an electrical current is sent through the track, the train moves. Turn the current backwards and the train slows down.

Maglev doesn't rely on the friction (摩擦力) of wheels on track, so it can climb a much steeper hill than a traditional train. And it can travel easily in snow and ice, something that could bring normal trains to a screaming stop.    

60.   This passage is about __________.

         A. maglev                   B. magnets                C. levitation               D. electricity

61.   Which of the following is a repelling action?

         A.                                B.                                C.                                D.

62.   What can we learn from the text?

         A. A magnet-filled guiding way is formed inside a maglev train.

         B. Instead of electricity, magnets are used as the power of a maglev.

         C. Maglev trains can climb hills with the help of magnet wheels.

         D. Electric currents decide the movements of a maglev train. 

63.   What is the difference between a maglev train and an ordinary train?

         A. A maglev train can climb mountains without power while an ordinary one can’t.

         B. A maglev train can travel in college campus while an ordinary train is not allowed.

         C. Travelling without a track, a maglev train is safer and smoother than an ordinary one.

         D. Floating on a track, a maglev train is faster, quieter than an ordinary railway train.

____ a lot of work to do, all the workers are not allowed to take their holidays.

A.Because      B.For       C.Since       D.With

A recent study, published in last week’s Journal of the American Medical Association, offers a picture of how risky it is to get a lift from a teenage driver. Indeed, a 16-year-old driver with three or more passengers is three times as likely to have a fatal accident as a teenager driving alone. By contrast, the risk of death for drivers between 30 and 59 decreases with each additional passenger.

The author also found that the death rates for teenage drivers increased dramatically after 10 p.m., and especially after midnight, with passengers in the car, the driver was even more likely to die in a late-night accident.

Robert Foss, a scientist at the University of North Carolina Highway Safety Research Center, says the higher death rates for teenage drivers have less to do with “really stupid behavior” than with just a lack of driving experience. “The basic issue.” he says, “is that adults who are responsible for issuing licenses fail to recognize how complex and skilled a task driving is.”

Both he and the author of the study believe that the way to mitigate (使……缓解)the problem is to have states institute so-called graduated licensing systems, in which getting a license is a multistage process. A graduated license requires that a teenager first prove himself capable of driving in the presence of an adult, followed by a period of driving with night of passenger restrictions, before graduating to full driving privileges.

Graduated licensing systems have reduced teenage driver crashes, according to recent studies, About half of the states now have some sort of graduated licensing system in place, but only 10 of those states have restrictions on passengers, California is the strictest, with a novice(新手)driver prohibited from carrying any passenger under 20(without the presence of an adult over 25)for the first six months.

Which of the following situations is most dangerous according to the passage?

A． Adults giving a lift to teenagers on the highway after 10 p.m.

B． A teenager driving after midnight with passengers in the car.

C． Adults driving with three or more teenage passengers late at night.

D． A teenager getting a lift from a stranger on the highway at midnight.

According to Robert Foss, the high death rate of teenage drivers is mainly due to ________

A． their frequent driving at night

B． their improper way of driving?

C． their lack of driving experience

D． their driving with passengers

According to Paragraph 3. which of the following statements is TRUE?

A． Teenagers should spend more time learning to drive.

B． Driving is a skill too complicated for teenagers to learn.

C． Restrictions should be imposed on teenagers applying to take driving lessons.

D．The licensing authorities are partly responsible for teenagers' driving accidents.

A suggested measure to be taken to reduce teenagers' driving accidents is that ________ .

A． driving in the presence of an adult should be made a rule

B． they should be prohibited from taking on passengers

C． they should not be allowed to drive after 10 p.m.

D． the licensing system should be improved

A simple piece of clothesline hangs between some environmentally friendly Americans and their neighbors.

On one side stand those who see clothes dryers(干衣机) as a waste of energy and a major polluter of the environment. As a result, they are turning to clotheslines as part of the “what-I –can do environmentalism(环境保护主义).”

On the other side are people who are against drying clothes outside, arguing that clotheslines are unpleasant to look at. They have persuaded Homeowners Associations (HOAs) access the U.S. to ban outdoor clotheslines, because clothesline drying also tends to lower home value in the neighborhood. This had led to a Right-to-Dry Movement that is calling for laws to be passed to protect people’s right to use clotheslines.

So far, only three states have laws to protect clothesline. Right-to-Dry supporters argue that there should be move.

Matt Reck, 37, is the kind of eco-conscious(有生态意识的) person who feeds his trees with bathwater and reuses water drops from his air conditioners to water plants. His family also uses a clothesline. But on July 9, 2007, the HOA in Wake Forest, North Carolina, told him that a dissatisfied neighlzir had telephoned them about him clothesline. The Recks paid no attention to the warming and still dried their clothes on a line in the yard. “Many people say they are environmentally friendly but they don’t take matters in their own hands,” says Reck. The local HOA has decided not to take any action, unless more neighbors come to them.

North Carolina lawmakers are saying that banning clotheslines is not the right thing to do. But HOAs and housing businesses believe that clothesline drying reminds people of poor neighborhoods. They worry that if buyers think their future neighbors can’t even afford dryers, housing prices will fall.

Environmentalists say such worries are not necessary, and in view of global warming, that idea needs to change. As they say, “The clothesline is beautiful”. Hanging clothes outside should be encouraged. We all have to do at least something to slow down the process of global warming.”

One of the reasons why supporters of clothes dryers are trying to ban clothesline drying is that ____.

A. clothes dryers are more efficient    B. clothesline drying reduces home value

C. clothes dryers are energy-saving    D. clothesline drying is not allowed in most U.S. states

Which of the following best describes Matt Reck?

   A. He is a kind-hearted man.          B. He is an impolite man.

   C. He is and experienced gardener.     D. He is a man of social responsibility.

Who are in favor of clothesline drying?

   A. housing businesses.               B. Environmentalists.

   C. Homeowners Associations.         D. Reck’s dissatisfied neighbors.

What is mainly discussed in the text?

   A. Clothesline drying: a way to save energy and money.

   B. Clothesline drying: a lost art rediscovered.

   C. Opposite opinions on clothesline drying.

   D. Different varieties of clotheslines.

A

Pronouncing words of a language is a skill. Every normal person is expert in the skill of pronouncing their own language; but few people are ever skilled at pronouncing foreign languages. Now there are many reasons for this, some obvious, some perhaps not so obvious. But I suggest that the reason why people in general do not speak foreign languages much better than they do their own language is that they fail to grasp the true nature of the problem of learning to pronounce, and never set about solving it in the right way. Far too many people fail to realize that pronouncing a foreign language is a skill-one that needs careful training of a special kind, and one that cannot be gained by just leaving it to take care of itself. I think even teachers of language, while recognizing the importance of a good accent, tend to neglect(忽略), in their practical teaching, the branch of study which has something to do with speaking the language. So the first point I want to make is that English pronunciation must be taught. The teacher should be prepared to devote some of the lesson time to this, and by his whole attitude(态度)to the subject should get the student to feel that here is a matter worthy of receiving close attention, thus when other aspects(方面)of English, such as grammar or spelling, are allowed for the moment, to take second place, there is something else.

Except for the question of time given to pronunciation, there are two other requirements for the teacher: the first, knowledge; the second, technique.

1. Why don't people speak a foreign language better than they speak they native language?

A. Because they can't grasp the nature of the problem of learning to pronounce.

B. Because they think pronouncing a foreign language is a impossible.

C. Because they never solve the problem in any way.

D. Because they pay more attention to pronunciation than anything else.

2. What is the passage mainly about?

A. Grammar should be paid no attention to.

B. Pronunciation is the most important aspect in learning a foreign language.

C. Spelling should not be taught in class.

D. Knowledge and technique are unnecessary in learning a foreign language.